<![CDATA[This community service program aimed to implement and optimize jet bubble column (JBC) technology in treating domestic wastewater at Pesantren Zaadul Ma’ad, Palembang. The background of this activity is the increasing domestic wastewater load that affects water quality and sanitation conditions at the pesantren. The main objective is to provide a sustainable and low-cost wastewater treatment solution while enhancing community awareness of environmental management. The method used is participatory action research (PAR), involving socialization, training, technology installation, mentoring, and evaluation. The JBC system, combined with a simple filtration unit (silica sand, zeolite, and activated carbon), was installed in a 600 m³ wastewater pond. The results showed significant improvements in water quality: dissolved oxygen (DO) increased from 3.85 mg/L to >5 mg/L, ammonia concentration decreased by 80–90%, turbidity dropped from 49.3 NTU to < 1 NTU, and total suspended solids (TSS) were reduced by more than 50 %. These findings prove that JBC technology is practical, easy to operate, and suitable for pesantren-scale wastewater treatment. Moreover, the program succeeded in forming an internal management team, developing training modules, and raising students’ environmental awareness. In conclusion, this program solved the technical problem of wastewater treatment and produced social, educational, and academic impacts.]]>
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